This is a Phase I, first time in human, randomised, blinded, placebo-controlled, single ascending dose study in healthy male volunteers conducted at a single centre. The effect of food on the pharmacokinetics of AZD7687 will also be studied.

The study will consist of two parts, a dose escalation part and a food interaction part. The two parts will be run in parallel. In total, 64 healthy volunteers divided in 8 different panels (8 volunteers per cohort) will be exposed to single doses during the dose escalation. Each subject will receive dose only once, except for the volunteers included in the dose steps repeated for food interaction.

Inclusion Criteria:

• Healthy
• BMI between 19-30

Exclusion Criteria:

• No blood donation prior 30 days
• No other clinical study prior 3 months